I read the thread about spanking, and I'd like to add this:
It is absolutely reprehensible to slap a child on his buttocks, bare or not. It’s a place close to the genitals, and whatever a child may have done, it surely does not deserve punishment that induces to rather questionable sexual behaviour in adulthood. The grown-up child tends to expose himself to sexual perverts, and it tends to inflict pain on his or her partner during so-called sexual behaviour.
It is spanking that has lead to the huge industry of sado-masochisme. We never learn to question our own sexuality, because perverse sexual behaviour is so common practice. For ages.
Parents have the tendency to put their desire to spank and to dominate into service of a higher cause. But this is just pretence, because it enables them to enjoy their lust of power without feeling guilt. They can tell themselves that they do not spank their children because they like to spank, but because their children deserve punishment.